BLE and TWI

[jc]

Hello, I've been trying to get my TWI device working in conjunction with the BLE stack (i.e. s110 softdevice is enabled) on a nRF51822.

I found another thread with an attached sd_twi_hw_master.c to demonstrate proper use of the PPI channels while the softdevice is enabled. However, I can't get twi_master_write() working. It always returns because:

while(NRF_TWI1->EVENTS_TXDSENT == 0 && (--timeout))

always results in a timeout.

Do I need to setup PPI channels to receive tx events? Cheers, -jc

[jc]

Thanks for the tips Håkon. You're right. This was a port of some legacy code and the slave did not live at the address I was using.

It all works as expected now.

-jc